变压器的继电保护是利用当变压器内外发生故障时,由于电流、电压、油温等随之发生变化,通过这些突然变化来发现、判断变压器故障性质和范围,继而作出相应的反应和处理。1故障分析1.1如果发现是瓦斯报警装置动作,初步判断故障在变压器内部(1)当变压器绕组匝间与层间局部短路、铁 Transformer relay protection is used when the transformer failure occurs inside and outside, due to the current, voltage, oil temperature changes with these sudden changes to find and determine the nature and scope of the transformer failure, and then make the appropriate response and treatment. 1 Failure Analysis 1.1 If the gas alarm device is found to act, initially determine the fault within the transformer (1) when the transformer winding turns and the local short circuit between the layers of iron